Home / 14,165.13-19,547.69-7,877.51

Finding the Fourth Proportional to 14,165.13, 19,547.69 and 7,877.51

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Solution

The fourth proportional to 14,165.13, 19,547.69 and 7,877.51 is: 10,870.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.13 : 19,547.69 = 7,877.51 : x
  2. Step 2: Convert to fraction form
    14,165.13/19,547.69 = 7,877.51/x
  3. Step 3: Cross multiply
    14,165.13x = 19,547.69 × 7,877.51
  4. Step 4: Simplify right side
    14,165.13x = 153,987,123.45
  5. Step 5: Solve for x
    x = 153,987,123.45/14,165.13
  6. Step 6: Final answer
    x = 10,870.86

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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.