Home / 12,547.30-17,315.40-7,241.08

Finding the Fourth Proportional to 12,547.30, 17,315.40 and 7,241.08

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Solution

The fourth proportional to 12,547.30, 17,315.40 and 7,241.08 is: 9,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.30 : 17,315.40 = 7,241.08 : x
  2. Step 2: Convert to fraction form
    12,547.30/17,315.40 = 7,241.08/x
  3. Step 3: Cross multiply
    12,547.30x = 17,315.40 × 7,241.08
  4. Step 4: Simplify right side
    12,547.30x = 125,382,196.63
  5. Step 5: Solve for x
    x = 125,382,196.63/12,547.30
  6. Step 6: Final answer
    x = 9,992.76

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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.