Home / 10,270.47-15,403.35-2,875.68

Finding the Fourth Proportional to 10,270.47, 15,403.35 and 2,875.68

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Solution

The fourth proportional to 10,270.47, 15,403.35 and 2,875.68 is: 4,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.47 : 15,403.35 = 2,875.68 : x
  2. Step 2: Convert to fraction form
    10,270.47/15,403.35 = 2,875.68/x
  3. Step 3: Cross multiply
    10,270.47x = 15,403.35 × 2,875.68
  4. Step 4: Simplify right side
    10,270.47x = 44,295,068.95
  5. Step 5: Solve for x
    x = 44,295,068.95/10,270.47
  6. Step 6: Final answer
    x = 4,312.86

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1.5x scale

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.