Home / 10,500.47-15,750.73-9,858.95

Finding the Fourth Proportional to 10,500.47, 15,750.73 and 9,858.95

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Solution

The fourth proportional to 10,500.47, 15,750.73 and 9,858.95 is: 14,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.47 : 15,750.73 = 9,858.95 : x
  2. Step 2: Convert to fraction form
    10,500.47/15,750.73 = 9,858.95/x
  3. Step 3: Cross multiply
    10,500.47x = 15,750.73 × 9,858.95
  4. Step 4: Simplify right side
    10,500.47x = 155,285,659.53
  5. Step 5: Solve for x
    x = 155,285,659.53/10,500.47
  6. Step 6: Final answer
    x = 14,788.45

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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.