Home / 7,718.96-10,641.02-5,061.76

Finding the Fourth Proportional to 7,718.96, 10,641.02 and 5,061.76

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Solution

The fourth proportional to 7,718.96, 10,641.02 and 5,061.76 is: 6,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.96 : 10,641.02 = 5,061.76 : x
  2. Step 2: Convert to fraction form
    7,718.96/10,641.02 = 5,061.76/x
  3. Step 3: Cross multiply
    7,718.96x = 10,641.02 × 5,061.76
  4. Step 4: Simplify right side
    7,718.96x = 53,862,237.48
  5. Step 5: Solve for x
    x = 53,862,237.48/7,718.96
  6. Step 6: Final answer
    x = 6,977.91

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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.