Home / 14,281.79-19,708.84-7,908.71

Finding the Fourth Proportional to 14,281.79, 19,708.84 and 7,908.71

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Solution

The fourth proportional to 14,281.79, 19,708.84 and 7,908.71 is: 10,914.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.79 : 19,708.84 = 7,908.71 : x
  2. Step 2: Convert to fraction form
    14,281.79/19,708.84 = 7,908.71/x
  3. Step 3: Cross multiply
    14,281.79x = 19,708.84 × 7,908.71
  4. Step 4: Simplify right side
    14,281.79x = 155,871,529.50
  5. Step 5: Solve for x
    x = 155,871,529.50/14,281.79
  6. Step 6: Final answer
    x = 10,914.00

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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.