Home / 13,337.76-18,407.28-7,750.56

Finding the Fourth Proportional to 13,337.76, 18,407.28 and 7,750.56

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Solution

The fourth proportional to 13,337.76, 18,407.28 and 7,750.56 is: 10,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.76 : 18,407.28 = 7,750.56 : x
  2. Step 2: Convert to fraction form
    13,337.76/18,407.28 = 7,750.56/x
  3. Step 3: Cross multiply
    13,337.76x = 18,407.28 × 7,750.56
  4. Step 4: Simplify right side
    13,337.76x = 142,666,728.08
  5. Step 5: Solve for x
    x = 142,666,728.08/13,337.76
  6. Step 6: Final answer
    x = 10,696.45

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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.