Home / 15,730.60-23,603.10-7,407.40

Finding the Fourth Proportional to 15,730.60, 23,603.10 and 7,407.40

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Solution

The fourth proportional to 15,730.60, 23,603.10 and 7,407.40 is: 11,114.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.60 : 23,603.10 = 7,407.40 : x
  2. Step 2: Convert to fraction form
    15,730.60/23,603.10 = 7,407.40/x
  3. Step 3: Cross multiply
    15,730.60x = 23,603.10 × 7,407.40
  4. Step 4: Simplify right side
    15,730.60x = 174,837,602.94
  5. Step 5: Solve for x
    x = 174,837,602.94/15,730.60
  6. Step 6: Final answer
    x = 11,114.49

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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.