Home / 15,447.16-21,316.98-8,373.52

Finding the Fourth Proportional to 15,447.16, 21,316.98 and 8,373.52

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Solution

The fourth proportional to 15,447.16, 21,316.98 and 8,373.52 is: 11,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.16 : 21,316.98 = 8,373.52 : x
  2. Step 2: Convert to fraction form
    15,447.16/21,316.98 = 8,373.52/x
  3. Step 3: Cross multiply
    15,447.16x = 21,316.98 × 8,373.52
  4. Step 4: Simplify right side
    15,447.16x = 178,498,158.37
  5. Step 5: Solve for x
    x = 178,498,158.37/15,447.16
  6. Step 6: Final answer
    x = 11,555.40

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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.