Home / 13,281.64-19,925.58-7,442.28

Finding the Fourth Proportional to 13,281.64, 19,925.58 and 7,442.28

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Solution

The fourth proportional to 13,281.64, 19,925.58 and 7,442.28 is: 11,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.64 : 19,925.58 = 7,442.28 : x
  2. Step 2: Convert to fraction form
    13,281.64/19,925.58 = 7,442.28/x
  3. Step 3: Cross multiply
    13,281.64x = 19,925.58 × 7,442.28
  4. Step 4: Simplify right side
    13,281.64x = 148,291,745.52
  5. Step 5: Solve for x
    x = 148,291,745.52/13,281.64
  6. Step 6: Final answer
    x = 11,165.17

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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.