Home / 9,860.79-13,607.51-5,384.55

Finding the Fourth Proportional to 9,860.79, 13,607.51 and 5,384.55

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Solution

The fourth proportional to 9,860.79, 13,607.51 and 5,384.55 is: 7,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.79 : 13,607.51 = 5,384.55 : x
  2. Step 2: Convert to fraction form
    9,860.79/13,607.51 = 5,384.55/x
  3. Step 3: Cross multiply
    9,860.79x = 13,607.51 × 5,384.55
  4. Step 4: Simplify right side
    9,860.79x = 73,270,317.97
  5. Step 5: Solve for x
    x = 73,270,317.97/9,860.79
  6. Step 6: Final answer
    x = 7,430.47

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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.