Home / 11,547.20-15,930.86-7,570.50

Finding the Fourth Proportional to 11,547.20, 15,930.86 and 7,570.50

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Solution

The fourth proportional to 11,547.20, 15,930.86 and 7,570.50 is: 10,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.20 : 15,930.86 = 7,570.50 : x
  2. Step 2: Convert to fraction form
    11,547.20/15,930.86 = 7,570.50/x
  3. Step 3: Cross multiply
    11,547.20x = 15,930.86 × 7,570.50
  4. Step 4: Simplify right side
    11,547.20x = 120,604,575.63
  5. Step 5: Solve for x
    x = 120,604,575.63/11,547.20
  6. Step 6: Final answer
    x = 10,444.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.