Home / 15,740.15-23,598.65-7,415.47

Finding the Fourth Proportional to 15,740.15, 23,598.65 and 7,415.47

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Solution

The fourth proportional to 15,740.15, 23,598.65 and 7,415.47 is: 11,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.15 : 23,598.65 = 7,415.47 : x
  2. Step 2: Convert to fraction form
    15,740.15/23,598.65 = 7,415.47/x
  3. Step 3: Cross multiply
    15,740.15x = 23,598.65 × 7,415.47
  4. Step 4: Simplify right side
    15,740.15x = 174,995,040.66
  5. Step 5: Solve for x
    x = 174,995,040.66/15,740.15
  6. Step 6: Final answer
    x = 11,117.75

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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.