Home / 14,075.64-19,424.40-7,788

Finding the Fourth Proportional to 14,075.64, 19,424.40 and 7,788

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Solution

The fourth proportional to 14,075.64, 19,424.40 and 7,788 is: 10,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,075.64 : 19,424.40 = 7,788 : x
  2. Step 2: Convert to fraction form
    14,075.64/19,424.40 = 7,788/x
  3. Step 3: Cross multiply
    14,075.64x = 19,424.40 × 7,788
  4. Step 4: Simplify right side
    14,075.64x = 151,277,227.20
  5. Step 5: Solve for x
    x = 151,277,227.20/14,075.64
  6. Step 6: Final answer
    x = 10,747.45

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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.