Home / 14,278.29-19,703.73-7,904.51

Finding the Fourth Proportional to 14,278.29, 19,703.73 and 7,904.51

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Solution

The fourth proportional to 14,278.29, 19,703.73 and 7,904.51 is: 10,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.29 : 19,703.73 = 7,904.51 : x
  2. Step 2: Convert to fraction form
    14,278.29/19,703.73 = 7,904.51/x
  3. Step 3: Cross multiply
    14,278.29x = 19,703.73 × 7,904.51
  4. Step 4: Simplify right side
    14,278.29x = 155,748,330.82
  5. Step 5: Solve for x
    x = 155,748,330.82/14,278.29
  6. Step 6: Final answer
    x = 10,908.05

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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.