Home / 14,329.81-19,775.75-7,956.40

Finding the Fourth Proportional to 14,329.81, 19,775.75 and 7,956.40

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Solution

The fourth proportional to 14,329.81, 19,775.75 and 7,956.40 is: 10,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,329.81 : 19,775.75 = 7,956.40 : x
  2. Step 2: Convert to fraction form
    14,329.81/19,775.75 = 7,956.40/x
  3. Step 3: Cross multiply
    14,329.81x = 19,775.75 × 7,956.40
  4. Step 4: Simplify right side
    14,329.81x = 157,343,797.19
  5. Step 5: Solve for x
    x = 157,343,797.19/14,329.81
  6. Step 6: Final answer
    x = 10,980.18

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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.