Home / 15,507.79-23,251.15-7,890.35

Finding the Fourth Proportional to 15,507.79, 23,251.15 and 7,890.35

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Solution

The fourth proportional to 15,507.79, 23,251.15 and 7,890.35 is: 11,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.79 : 23,251.15 = 7,890.35 : x
  2. Step 2: Convert to fraction form
    15,507.79/23,251.15 = 7,890.35/x
  3. Step 3: Cross multiply
    15,507.79x = 23,251.15 × 7,890.35
  4. Step 4: Simplify right side
    15,507.79x = 183,459,555.70
  5. Step 5: Solve for x
    x = 183,459,555.70/15,507.79
  6. Step 6: Final answer
    x = 11,830.16

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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.