Home / 13,307.65-18,345.47-10,470.13

Finding the Fourth Proportional to 13,307.65, 18,345.47 and 10,470.13

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Solution

The fourth proportional to 13,307.65, 18,345.47 and 10,470.13 is: 14,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.65 : 18,345.47 = 10,470.13 : x
  2. Step 2: Convert to fraction form
    13,307.65/18,345.47 = 10,470.13/x
  3. Step 3: Cross multiply
    13,307.65x = 18,345.47 × 10,470.13
  4. Step 4: Simplify right side
    13,307.65x = 192,079,357.60
  5. Step 5: Solve for x
    x = 192,079,357.60/13,307.65
  6. Step 6: Final answer
    x = 14,433.76

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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.