Home / 13,547.24-18,653.65-11,859.20

Finding the Fourth Proportional to 13,547.24, 18,653.65 and 11,859.20

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Solution

The fourth proportional to 13,547.24, 18,653.65 and 11,859.20 is: 16,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.24 : 18,653.65 = 11,859.20 : x
  2. Step 2: Convert to fraction form
    13,547.24/18,653.65 = 11,859.20/x
  3. Step 3: Cross multiply
    13,547.24x = 18,653.65 × 11,859.20
  4. Step 4: Simplify right side
    13,547.24x = 221,217,213.52
  5. Step 5: Solve for x
    x = 221,217,213.52/13,547.24
  6. Step 6: Final answer
    x = 16,329.33

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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.