Home / 7,527.80-10,390.53-4,543.13

Finding the Fourth Proportional to 7,527.80, 10,390.53 and 4,543.13

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Solution

The fourth proportional to 7,527.80, 10,390.53 and 4,543.13 is: 6,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.80 : 10,390.53 = 4,543.13 : x
  2. Step 2: Convert to fraction form
    7,527.80/10,390.53 = 4,543.13/x
  3. Step 3: Cross multiply
    7,527.80x = 10,390.53 × 4,543.13
  4. Step 4: Simplify right side
    7,527.80x = 47,205,476.61
  5. Step 5: Solve for x
    x = 47,205,476.61/7,527.80
  6. Step 6: Final answer
    x = 6,270.82

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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.