Home / 10,948.80-16,442.40-10,603.20

Finding the Fourth Proportional to 10,948.80, 16,442.40 and 10,603.20

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Solution

The fourth proportional to 10,948.80, 16,442.40 and 10,603.20 is: 15,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.80 : 16,442.40 = 10,603.20 : x
  2. Step 2: Convert to fraction form
    10,948.80/16,442.40 = 10,603.20/x
  3. Step 3: Cross multiply
    10,948.80x = 16,442.40 × 10,603.20
  4. Step 4: Simplify right side
    10,948.80x = 174,342,055.68
  5. Step 5: Solve for x
    x = 174,342,055.68/10,948.80
  6. Step 6: Final answer
    x = 15,923.39

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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.