Home / 18,930.36-26,124.30-10,547.40

Finding the Fourth Proportional to 18,930.36, 26,124.30 and 10,547.40

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Solution

The fourth proportional to 18,930.36, 26,124.30 and 10,547.40 is: 14,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.36 : 26,124.30 = 10,547.40 : x
  2. Step 2: Convert to fraction form
    18,930.36/26,124.30 = 10,547.40/x
  3. Step 3: Cross multiply
    18,930.36x = 26,124.30 × 10,547.40
  4. Step 4: Simplify right side
    18,930.36x = 275,543,441.82
  5. Step 5: Solve for x
    x = 275,543,441.82/18,930.36
  6. Step 6: Final answer
    x = 14,555.64

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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.