Home / 15,531.40-23,312.55-7,213.30

Finding the Fourth Proportional to 15,531.40, 23,312.55 and 7,213.30

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Solution

The fourth proportional to 15,531.40, 23,312.55 and 7,213.30 is: 10,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.40 : 23,312.55 = 7,213.30 : x
  2. Step 2: Convert to fraction form
    15,531.40/23,312.55 = 7,213.30/x
  3. Step 3: Cross multiply
    15,531.40x = 23,312.55 × 7,213.30
  4. Step 4: Simplify right side
    15,531.40x = 168,160,416.92
  5. Step 5: Solve for x
    x = 168,160,416.92/15,531.40
  6. Step 6: Final answer
    x = 10,827.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.