Home / 15,642.60-21,587.10-8,569.03

Finding the Fourth Proportional to 15,642.60, 21,587.10 and 8,569.03

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Solution

The fourth proportional to 15,642.60, 21,587.10 and 8,569.03 is: 11,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.60 : 21,587.10 = 8,569.03 : x
  2. Step 2: Convert to fraction form
    15,642.60/21,587.10 = 8,569.03/x
  3. Step 3: Cross multiply
    15,642.60x = 21,587.10 × 8,569.03
  4. Step 4: Simplify right side
    15,642.60x = 184,980,507.51
  5. Step 5: Solve for x
    x = 184,980,507.51/15,642.60
  6. Step 6: Final answer
    x = 11,825.43

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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.