Home / 15,389.64-21,237.02-8,675.24

Finding the Fourth Proportional to 15,389.64, 21,237.02 and 8,675.24

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Solution

The fourth proportional to 15,389.64, 21,237.02 and 8,675.24 is: 11,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.64 : 21,237.02 = 8,675.24 : x
  2. Step 2: Convert to fraction form
    15,389.64/21,237.02 = 8,675.24/x
  3. Step 3: Cross multiply
    15,389.64x = 21,237.02 × 8,675.24
  4. Step 4: Simplify right side
    15,389.64x = 184,236,245.38
  5. Step 5: Solve for x
    x = 184,236,245.38/15,389.64
  6. Step 6: Final answer
    x = 11,971.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.