Home / 7,715.16-10,642.59-4,881.66

Finding the Fourth Proportional to 7,715.16, 10,642.59 and 4,881.66

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Solution

The fourth proportional to 7,715.16, 10,642.59 and 4,881.66 is: 6,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.16 : 10,642.59 = 4,881.66 : x
  2. Step 2: Convert to fraction form
    7,715.16/10,642.59 = 4,881.66/x
  3. Step 3: Cross multiply
    7,715.16x = 10,642.59 × 4,881.66
  4. Step 4: Simplify right side
    7,715.16x = 51,953,505.90
  5. Step 5: Solve for x
    x = 51,953,505.90/7,715.16
  6. Step 6: Final answer
    x = 6,733.95

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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.