Home / 10,275.46-15,400.74-4,721.08

Finding the Fourth Proportional to 10,275.46, 15,400.74 and 4,721.08

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Solution

The fourth proportional to 10,275.46, 15,400.74 and 4,721.08 is: 7,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.46 : 15,400.74 = 4,721.08 : x
  2. Step 2: Convert to fraction form
    10,275.46/15,400.74 = 4,721.08/x
  3. Step 3: Cross multiply
    10,275.46x = 15,400.74 × 4,721.08
  4. Step 4: Simplify right side
    10,275.46x = 72,708,125.60
  5. Step 5: Solve for x
    x = 72,708,125.60/10,275.46
  6. Step 6: Final answer
    x = 7,075.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.