Home / 10,502.66-15,763.71-5,312.18

Finding the Fourth Proportional to 10,502.66, 15,763.71 and 5,312.18

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Solution

The fourth proportional to 10,502.66, 15,763.71 and 5,312.18 is: 7,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502.66 : 15,763.71 = 5,312.18 : x
  2. Step 2: Convert to fraction form
    10,502.66/15,763.71 = 5,312.18/x
  3. Step 3: Cross multiply
    10,502.66x = 15,763.71 × 5,312.18
  4. Step 4: Simplify right side
    10,502.66x = 83,739,664.99
  5. Step 5: Solve for x
    x = 83,739,664.99/10,502.66
  6. Step 6: Final answer
    x = 7,973.19

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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.