Home / 7,875.30-10,868.53-4,339.15

Finding the Fourth Proportional to 7,875.30, 10,868.53 and 4,339.15

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Solution

The fourth proportional to 7,875.30, 10,868.53 and 4,339.15 is: 5,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.30 : 10,868.53 = 4,339.15 : x
  2. Step 2: Convert to fraction form
    7,875.30/10,868.53 = 4,339.15/x
  3. Step 3: Cross multiply
    7,875.30x = 10,868.53 × 4,339.15
  4. Step 4: Simplify right side
    7,875.30x = 47,160,127.61
  5. Step 5: Solve for x
    x = 47,160,127.61/7,875.30
  6. Step 6: Final answer
    x = 5,988.36

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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.