Home / 10,434.65-15,558.90-9,275.54

Finding the Fourth Proportional to 10,434.65, 15,558.90 and 9,275.54

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Solution

The fourth proportional to 10,434.65, 15,558.90 and 9,275.54 is: 13,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434.65 : 15,558.90 = 9,275.54 : x
  2. Step 2: Convert to fraction form
    10,434.65/15,558.90 = 9,275.54/x
  3. Step 3: Cross multiply
    10,434.65x = 15,558.90 × 9,275.54
  4. Step 4: Simplify right side
    10,434.65x = 144,317,121.51
  5. Step 5: Solve for x
    x = 144,317,121.51/10,434.65
  6. Step 6: Final answer
    x = 13,830.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.