Home / 15,723.10-21,697.33-9,007.80

Finding the Fourth Proportional to 15,723.10, 21,697.33 and 9,007.80

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Solution

The fourth proportional to 15,723.10, 21,697.33 and 9,007.80 is: 12,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.10 : 21,697.33 = 9,007.80 : x
  2. Step 2: Convert to fraction form
    15,723.10/21,697.33 = 9,007.80/x
  3. Step 3: Cross multiply
    15,723.10x = 21,697.33 × 9,007.80
  4. Step 4: Simplify right side
    15,723.10x = 195,445,209.17
  5. Step 5: Solve for x
    x = 195,445,209.17/15,723.10
  6. Step 6: Final answer
    x = 12,430.45

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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.